The weekly litigation news digest is live. Subscribe now

Patent Oppositions in liquid pumps and displacement machines industry

Explore the competitive field of liquid pumps and displacement machines where companies are constantly innovating to stay ahead. Discover the latest patent opposition trends, top companies filing and facing patent oppositions, and the most recent patents under dispute. Stay informed on patent activity in liquid pumps and displacement machines technology and learn how to protect your intellectual property.

Explore the top companies that have filed the most patent oppositions in the technology industry.

Explore the top companies that have faced the most patent oppositions in the technology industry.

Explore the top law firms that have filed the most patent oppositions in the technology industry.

Patent challenges are becoming increasingly common in the liquid pumps and displacement machines industry as companies work to protect their innovations in a highly competitive market. These legal battles can significantly impact the development and release of new technologies. Below is a list of the latest patents that have been opposed in the liquid pumps and displacement machines industry, offering a snapshot of the ongoing struggles over intellectual property rights. For anyone involved in this industry, understanding these patent disputes is essential for navigating its future.

Last updated on: Dec 25, 2025
Patent NumberTitleApplicantOpposition DateOpposition Name
Compressor, Disc Body And SealSTASSKOLOct 29, 2025BURCKHARDT COMPRESSION
Sealing Device For A Piston Rod Of A Reciprocating CompressorHOERBIGER WIENOct 29, 2025BURCKHARDT COMPRESSION
Compressor, Disc Body And SealNEUMAN & ESSEROct 27, 2025HOERBIGER WIEN
Method For Emptying Viscous Material Out Of A Cartridge Which Is Open On Both Sides, And Emptying Device Suitable For This PurposeDOSMATIXOct 7, 2025ATLAS COPCO EPS
Pump Health MonitoringHAMILTON SUNDSTRANDJul 8, 2025KSB
Rotary Piston Engine Unit With Lubricant Supply DeviceAERZENER MASCHINENFABRIKMay 19, 2025ATLAS COPCO
Piston For Reciprocating Compressor Having Complementary Sealing ElementsFAIVELEY TRANSPORT ITALIAJan 24, 2025BURCKHARDT COMPRESSION
Piston For Reciprocating Compressor Having Complementary Sealing ElementsFAIVELEY TRANSPORT ITALIAJan 22, 2025KNORR BREMSE SYSTEME FUR SCHIENENFAHRZEUGE
Metering Pump SystemGRUNDFOS HOLDINGOct 10, 2024PROMINENT
Metering Pump SystemGRUNDFOS HOLDINGOct 9, 2024HERBERT SAIER

To stay ahead in the competitive liquid pumps and displacement machines industry, companies are constantly innovating. Here are the top patents facing oppositions in the liquid pumps and displacement machines industry. Stay informed on the latest opposition trends and learn how to protect your intellectual property.

Last updated on: Dec 25, 2025
Patent NumberPublication DateTitleApplicantTotal Oppositions
Jan 5, 2022Gas Recirculation Device And System With SamePFEIFFER VACUUM3
Jul 12, 2023Compressor System And Method For Operating A Compressor System According To The Compressed-Air Demand Of An Operating State Of The VehicleKNORR BREMSE SYSTEME FR SCHIENENFAHRZEUGE2
Mar 17, 2021Screw Compressor For A Utility VehicleKNORR BREMSE SYSTEME FR NUTZFAHRZEUGE2
Jan 10, 2024Metering Pump SystemGRUNDFOS HOLDING2
Jan 29, 2025Compressor, Disc Body And SealSTASSKOL2
Aug 22, 2018Refrigerating ApparatusDAIKIN INDUSTRIES2
Oct 1, 2025Drug Delivery Device With Gear Module And Related Method Of AssemblyAMGEN2
Apr 24, 2024Piston For Reciprocating Compressor Having Complementary Sealing ElementsFAIVELEY TRANSPORT ITALIA2
Jul 20, 2022Pumping SystemAKER WIRTH1
Aug 15, 2018High Pressure Valve AssemblyHAMMELMANN1